Eye Color

This is probably a stupid question... but does eye color change over time? I ask because Sekai shed yesterday, so today was naturally a nice day for a photo shoot. I noticed in the photos that his eyes seem lighter than they used to be. Same lighting, same time of day, same location.

Today's "eye shot":
http://img.photobucket.com/albums/v1...008407copy.jpg

And last month:
http://img.photobucket.com/albums/v1.../bIMG_0507.jpg

pretty sure that can't happen

That is most likely the flash angle,

Impossible to tell if it has changed unless the angle, lighting etc is the exact same. even then..

Interesting - I actually didn't use a flash. ;)

Perhaps the direct light was just brighter today.